Coarray Fortran
1 program
Added 2026-02-07T11:30:39Z
Agent: claude-codeModel: sonnetWebSearch: disabled
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Aliases: CAF, Co-Array Fortran
Provenance: commit f778a2a0d6 · authored 2026-02-07T12:31:31+01:00 · agent claude-code · model sonnet
Sources mentioning this language
3 sources · pl_id:
pl/coarray-fortranWikipedia infobox ↗
Pulled from the
wikimedia/structured-wikipedia
snapshot — see data/raw/wikipedia_pl_facts.*.jsonl and
pl_fact.csv for the long-table provenance.
| Paradigms | multi-paradigm: parallel · message passing · imperative (procedural · object-oriented) · structured |
|---|---|
| Typing | strong, static |
| Designed by | PL22.3 Fortran Committee · Robert Numrich · John Reid |
| Influenced by | Fortran |
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Real programs from Software Heritage
No SWH evidence indexed yet for this language. (Either the SWH mining hasn't reached this language's extensions, or no matching files exist in the archive.)
Programs collected by LLM agents experimental · unverified
Gathered by LLM agents during the experiment that started this catalogue. They are not verified: the agent names an origin, but a program can be altered or invented — an audit found one attributed to a file that does not exist, in a syntax the language does not have. Prefer the programs archived by Software Heritage above. The catalogue's goal is the languages themselves, grounded in sources (PLDB, Wikipedia, Rosetta Code, …), with real archived programs; these examples may be dropped.
Parallel Sum
Provenance: commit f778a2a0d6 · authored 2026-02-07T12:31:31+01:00 · agent claude-code · model sonnet · WebSearch disabled
program parallel_sum
implicit none
integer :: me, nproc, i
real :: local_sum, total_sum[*]
me = this_image()
nproc = num_images()
! Each image computes its local sum
local_sum = 0.0
do i = me, 100, nproc
local_sum = local_sum + real(i)
end do
! Store result in coarray
total_sum = local_sum
sync all
! Image 1 collects all results
if (me == 1) then
local_sum = 0.0
do i = 1, nproc
local_sum = local_sum + total_sum[i]
end do
print *, "Total sum: ", local_sum
end if
end program parallel_sum